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ISC Class 12 Biology Analysis 2023ISC Biology 2023 Analysis: The Council of Indian School Certificate Examination (CISCE) conducted the exam for ISC biology 2023 today, Friday, March 17, 2023. ISC biology was the last major paper for the science stream students while the remaining are optional electives. ISC 12th biology has a paper pattern similar to that of other core subject papers with four sections carrying one-mark to four-mark questions.
A comprehensive assessment for ISC class 12 biology 2023 paper is now provided here. Along with it, the opinions of the students and their first reactions to the paper are added here as well. A detailed and accurate ISC biology answer key 2023 is also added here for all short-answer questions.
ISC Class 12 Biology Answer Key 2023
There are very few multiple-choice questions in ISC biology paper while more questions are very-short answer type with objective answers. The complete answer key for such questions is given here.
| Question 1 (Section A) | |
|---|---|
| (i) | Thermus aquaticus |
| (ii) | Entamoeba histolytica |
| (iii) | A process where biological material such as cells, tissues, or organs are frozen in liquid nitrogen to preserve it for an extended period of time. |
| (iv) | There is no probability that the boy will be colourblind because it is an X-linked disorder. |
| (v) | IgG (Immunoglobulin G) |
| (vi) | S phase |
| (vii) | Two sets |
| (viii) | Perisperm is a nutritive tissue of a seed derived from the nucellus and deposited external to the embryo sac. |
| (ix) | (b) Ligase |
| (x) | (a) Inverted pyramid of biomass |
| (xi) | (a) Both assertion and reason are true, and Reason is the correct explanation of Assertion. |
| (xii) | (a) Alkaline pH of gut |
| (xiii) | (a) Population Genetics (b) Father of Indian Ecology |
| (xiv) | (a) IVF (in vitro fertilization) (b) Triple fusion |
| (xv) | (a) National AIDS Control Organization (b) Pelvic Inflammatory Disease |
| (xvi) | (a) It is a poisonous plant that will cause respiratory disorders, especially heart disorders. (b) DNA cannot pass through cell membranes since it is a hydrophilic molecule. |
ISC Class 12 Biology 2023: Student Reviews
The preliminary reactions of the candidates and other significant highlights regarding ISC biology are discussed below:
- ISC Biology paper was rated as 'Moderate'. Students expressed that they found Section C to be the toughest section.
- "I found the paper to be a bit tricky, especially Section C," a student commented when asked about today's biology paper. "Section D was tough too. I think I will at most score 50 to 55 marks in this paper."
- "I'd say the paper as at most, moderate. It wasn't tough but it was lengthy," said Kaushik, a Delhi CISCE student. "I somehow managed to complete the paper on time."
- Expert Review:
The overall difficulty level of the paper was average, with some questions in Sections C and D having an above-average difficulty level. The questions were concept-based and challenged the understanding of the students rather than their memorizing abilities. There were direct questions as well and their difficulty level was easy to moderate. If the student has adequate understanding and preparation, they should be able to attempt all the questions in the paper. However, the paper was somewhat lengthy."
ISC Class 12 Biology Question Paper Analysis 2023
As per the reviews of the subject experts and also taking into consideration the opinions of the students, the in-depth analysis for the following parameters will be stated in the table below:
| Parameter | Analysis |
|---|---|
| Overall difficulty level of the paper | Moderate |
| Difficulty level of Section A | Easy to Moderate |
| Difficulty level of Section B | Moderate |
| Difficulty level of Section C | Moderate but tricky |
| Difficulty level of Section D | Slightly above Moderate |
| Expected good score in Section A | 17+ |
| Expected good score in Section B | 11+ |
| Expected good score in Section C | 17+ |
| Expected good score in Section D | 11+ |
| Was the paper lengthy? | Yes |
| Overall expected good score | 55+ |
Also Read | ISC Class 12 Result Date 2023
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